We found 5 dictionaries that define the word Principal meridian:

General (2 matching dictionaries)

1. principal meridian: Merriam-Webster
2. Principal Meridian, Principal meridian: Wikipedia, the Free Encyclopedia

Business (2 matching dictionaries)

3. principal meridian, Principal meridian: Financial dictionary

Computing (1 matching dictionary)

4. principal meridian: Encyclopedia

Definitions from Wikipedia (Principal meridian) ▸ noun:  A principal meridian is a meridian used for survey control in a large region. ▸ Words similar to Principal meridian ▸ Usage examples for Principal meridian ▸ Idioms related to Principal meridian ▸ Wikipedia articles (New!) ▸ Words that often appear near Principal meridian ▸ Rhymes of Principal meridian ▸ Invented words related to Principal meridian